Adopted woman searches for her long-lost sister only to learn she's living next door

In a wild coincidence, a woman who was searching for her long-lost sister didn't have to look too far.

In 2012, Hillary Harris, 31, said she learned through adoption records that she had a half-sister out in the world named Dawn Johnson.

Five years later, Harris shockingly discovered that Johnson had been living right next door to her for two months.

"It was overwhelming to say the least," Harris said in a statement. "It was a lot to take in."

Harris of Eau Claire, Wisconsin, said she had moved to the neighborhood in 2005. Harris had been adopted as an infant by her parents Lee Hardy and Rochelle Hardy. Six years ago, she received her adoption information from Catholic Charities. It was then when she learned the identity of her birth parents: Bonnie Carl and Wayne Clouse.

Courtesy Hillary Harris

Hillary Harris is seen in a photo the day her parents, Lee Hardy and Rochelle Hardy, adopted her.

"I also learned in that packet that my birth father Wayne had passed in 2010," Harris told "GMA." "They included his obituary. In his obituary is where I learned that my half-sister Dawn [Johnson] was from Greenwood, Wisconsin, and was the Loyal Corn Festival Queen in the 80s."

Going off the little information she had, Harris began to search for Johnson, whose father was also Wayne Clouse, making the two women half sisters.

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I immediately had a suspicion

Harris had little luck but then, in June 2017, Harris' husband, Lance, informed her that a woman named Dawn from Greenwood had just moved into the house next door to them in Eau Claire.

"I immediately had a suspicion since I knew from my birth father’s obituary said that he had a daughter named Dawn from Greenwood," Harris said.